import logging

from yuxi.channel.extensions.taobao.types import InboundTaobaoMessage

logger = logging.getLogger(__name__)


def parse_to_unified_message(raw: dict) -> dict | None:
    msg_type = str(raw.get("msg_type", raw.get("type", "text")))

    content_map = {
        "text": lambda r: r.get("content", "") or r.get("text", ""),
        "0": lambda r: r.get("content", "") or r.get("text", ""),
        "image": lambda r: "[图片消息]",
        "1": lambda r: "[图片消息]",
        "order": lambda r: _format_order_message(r),
        "trade": lambda r: _format_order_message(r),
        "system": lambda r: "[系统消息]",
        "ordering": lambda r: _format_ordering_message(r),
        "item": lambda r: _format_item_card(r),
        "coupon": lambda r: _format_coupon_card(r),
    }

    handler = content_map.get(msg_type, lambda r: r.get("content", "") or r.get("text", ""))
    content = handler(raw)

    buyer_nick = raw.get("buyer_nick", "") or raw.get("from_user", "") or raw.get("from_id", "")
    msg_id = raw.get("msg_id", "") or raw.get("id", "") or str(hash(f"{buyer_nick}{content}"))

    if not buyer_nick or not content:
        return None

    unified = {
        "sender": {"id": buyer_nick, "name": buyer_nick},
        "content": content,
        "message_id": msg_id,
        "channel_type": "taobao",
        "chat_type": "direct",
        "timestamp": raw.get("timestamp"),
        "raw": raw,
    }

    order_id = raw.get("order_id") or raw.get("trade_id") or raw.get("tid")
    if order_id:
        unified["order_id"] = str(order_id)

    return unified


def _format_order_message(raw: dict) -> str:
    order_id = raw.get("order_id", raw.get("trade_id", ""))
    status = raw.get("status", raw.get("order_status", ""))
    buyer = raw.get("buyer_nick", "")
    return f"[订单消息] 订单ID: {order_id}, 状态: {status}, 买家: {buyer}"


def _format_ordering_message(raw: dict) -> str:
    item_name = raw.get("item_title", raw.get("item_name", "未知商品"))
    price = raw.get("price", "")
    return f"[商品卡片] {item_name}" + (f" ¥{price}" if price else "")


def _format_item_card(raw: dict) -> str:
    item_name = raw.get("item_title", raw.get("item_name", "未知商品"))
    price = raw.get("price", "")
    return f"[商品推荐] {item_name}" + (f" ¥{price}" if price else "")


def _format_coupon_card(raw: dict) -> str:
    coupon_name = raw.get("coupon_name", "优惠券")
    amount = raw.get("amount", raw.get("denomination", ""))
    return f"[优惠券] {coupon_name}" + (f" ¥{amount}" if amount else "")


def parse_raw_to_taobao_message(raw: dict) -> InboundTaobaoMessage:
    return InboundTaobaoMessage(
        msg_id=raw.get("msg_id", raw.get("id", "")),
        buyer_nick=raw.get("buyer_nick", raw.get("from_user", "")),
        seller_nick=raw.get("seller_nick", ""),
        content=raw.get("content", raw.get("text", "")),
        msg_type=raw.get("msg_type", "text"),
        order_id=raw.get("order_id") or raw.get("trade_id"),
        item_id=raw.get("item_id"),
        raw_payload=raw,
    )